Adds a value to the list which is shown by the comboBox.
Parameters: xValue - represents the value wich is assigned to the comboBox-object whenthe correspondent display-string was selected Parameters: xString - represents the value which is displayed in the selection list.xString can also be a repository-reference to display an other(gui-)object within the list
Adds a value to the list which is shown by the comboBox.
Parameters: xValue - represents the value which is assigned to the comboBox-object whenthe correspondent display-string was selected Parameters: xObj - can be every registrable object, including other widgets.
Gets all list-items collected in a HashMap. The list-values are stored
within the map's key values while the screen-items are stored within the
map's values